Günün Farklı Zamanlardaki Ortam Işığının Rezin Kompozitin Renk Değişimi Üzerindeki Etkisi

Abstract

Bu çalışmanın amacı rezin kompozitin farklı renk tonlarının günün farklı zamanlarındaki ortam ışığı ile standart bir ışık kaynağı arasındaki renk değişim değerleri incelenmiştir. Dynamic Plus (President, Almanya) rezin kompozit materyalinden A2 ve A3 renk tonlarında toplam 60 disk hazırlanmış ve her renk grubu rastgele üç alt gruba ayrılmıştır (n=10). Spektrofotometre kullanılarak 5500 K ışık sıcaklığında beyaz arka planda L*, a* ve b* değerleri ölçülmüş ardından sabah (10.00), öğle (14.00) ve akşam (18.00) saatlerinde ortam ışığı altında yeniden değerlendirilmiştir. Renk değişimi (ΔE00) CIEDE2000 formülü ile hesaplanmış ve istatistiksel analiz için iki yönlü varyans analizi (two-way ANOVA) ve Tukey post-hoc testi uygulanmıştır (p<0.05). Two-way ANOVA sonuçları ışık ve kompozit renk tonu arasındaki etkileşimin ΔE00 üzerinde anlamlı bir etkisi olmadığını göstermiştir (p=0,425). Işık ve kompozitin ana etkileri ise anlamlı bulunmuştur (p<0.001 ve p=0.003). En düşük ΔE00 akşam saatlerinde (0.36 ± 0.19), en yüksek değer ise öğle saatlerinde gözlenmiştir (1.35 ± 0.39). Öğle ve sabah zamanlarında rezin kompozitlerin ΔE00 değeri arasındaki fark istatistiksel olarak anlamlı bulunmadı (p>0.05). A2 grubunun ΔE00 değeri A3 grubuna kıyasla daha yüksek bulunmuştur (p=0.003). Sonuç olarak ortam ışığı rezin kompozitlerin renk farklılıklarını etkileyebilir ve diş restorasyonlarında doğru ışık kullanımı estetik uyumu artırabilir.

Keywords

• renk algısı
• renk değişimi
• ortam ışığı
• spektrofotometre
• rezin kompozit

The Effect of Ambient Light at Different Times of the Day on the Color Change of Resin Composites

Abstract

The aim of this study was to evaluate the color variation of different resin composite shades under ambient light at various times of the day compared to a standard light source. Sixty disc-shaped samples were prepared from Dynamic Plus (President, Germany) composite in A2 and A3 shades. Each shade group was randomly divided into three subgroups (n=10). L*, a*, and b* values were measured using a spectrophotometer under a white background at 5500 K, followed by reevaluation under ambient light in the morning (10:00), noon (14:00), and evening (18:00). Color change (ΔE00) was calculated with the CIEDE2000 formula, and data were analyzed by two-way ANOVA and Tukey post-hoc tests (p<0.05). The interaction between light and shade was not significant (p=0.425). However, the main effects of light (p<0.001) and composite shade (p=0.003) were significant. The lowest ΔE00 was observed in the evening (0.36 ± 0.19), while the highest occurred at noon (1.35 ± 0.39). No significant difference was found between noon and morning values (p>0.05). The A2 group showed significantly higher ΔE00 than A3 (p=0.003). In conclusion, ambient light affects resin composite color variation, and proper lighting selection may improve aesthetic outcomes in dental restorations.

Keywords

• color perception
• color change
• ambient light
• spectrophotometer
• resin composite

References

1. 1. Spencer P, Ye Q, Song L, Parthasarathy R, Boone K, Misra A et al. Threats to adhesive/dentin interfacial integrity and next generation bio‐enabled multifunctional adhesives. J Biomed Mater Res Part B. 2019;107(8):2673-2683. https://doi.org/10.1002/jbm.b.34358
2. 2. Malekipour MR, Sharafi A, Kazemi S, Khazaei S, Shirani F. Comparison of color stability of a composite resin in different color media. Dent Res J. 2012;9:441.
3. 3. Ontiveros JC, Paravina RD. Color and shade matching in operative dentistry. In: Sturdevant’s Art and Science of Operative Dentistry. Elsevier. 2019;200-218. https://doi.org/10.1016/B978-0-323-47833-5.00007-1
4. 4. Klotz AL, Habibi Y, Corcodel N, Rammelsberg P, Hassel AJ, Zenthöfer A. Laboratory and clinical reliability of two spectrophotometers. J Esthet Restor Dent. 2022;34:369–373. https://doi.org/10.1111/jerd.12452
5. 5. Chu SJ, Trushkowsky RD, Paravina RD. Dental color matching instruments and systems. Review of clinical and research aspects. J Dent. 2010;38:e2-e16. https://doi.org/10.1016/j.jdent.2010.07.001
6. 6. Igiel C, Lehmann KM, Ghinea R, Weyhrauch M, Hangx Y, Scheller H et al. Reliability of visual and instrumental color matching. J Esthet Restor Dent. 2017;29:303–308. https://doi.org/10.1111/jerd.12321
7. 7. Afrashtehfar KI, Tchounwou PB, Jouhar R. Comparison of shade matching ability among dental students under different lighting conditions: A cross-sectional study. Int J Environ Res Public Heal. 2022;19:11892. https://doi.org/10.3390/ijerph191911892
8. 8. Tabatabaian F, Beyabanaki E, Alirezaei P, Epakchi S. Visual and digital tooth shade selection methods, related effective factors and conditions and their accuracy and precision: A literature review. J Esthet Restor Dent. 2021;33:1084–1104. https://doi.org/10.1111/jerd.12816

9. 9. Paul SJ, Peter A, Rodoni L, Pietrobon N. Conventional visual vs spectrophotometric shade taking for porcelain-fused-to-metal crowns: A clinical comparison. J Prosthet Dent. 2004;92:577. https://doi.org/10.1016/j.prosdent.2004.09.013
10. 10. Soldo M, Illeš D, Ćelić R, Zlatarić DK. Assessment of color parameters on maxillary right central ıncisors using spectrophotometer and RAW mobile photos in different light conditions. Acta Stomatol Croat. 2020;54:353. https://doi.org/10.15644/asc54/4/2
11. 11. Lehmann KM, Igiel C, Schmidtmann I, Scheller H. Four color-measuring devices compared with a spectrophotometric reference system. J Dent. 2010;38:2. https://doi.org/10.1016/j.jdent.2010.07.006
12. 12. Ergücü Z, Türkün LS, Aladag A. Color stability of nanocomposites polished with one-step systems. Oper Dent. 2008;33:413–420. https://doi.org/10.2341/07-107
13. 13. Jasinevicius TR, Curd FM, Schilling L, Sadan A. Shade-matching abilities of dental laboratory technicians using a commercial light source. J Prosthodont. 2009;18:60–63. https://doi.org/10.1111/j.1532-849X.2008.00376.x
14. 14. Dagg H, O’Connell B, Claffey N, Byrne D, Gorman C. The influence of some different factors on the accuracy of shade selection. J Oral Rehabil. 2004;31:900–904. https://doi.org/10.1111/j.1365-2842.2004.01310.x
15. 15. Hardan L, Bourgi R, Cuevas-Suárez CE, Lukomska-Szymanska M, Monjarás-Ávila AJ, Zarow M. Novel trends in dental color match using different shade selection methods: A systematic review and meta-analysis. Materials (Basel). 2022;15(2):468. https://doi.org/10.3390/ma15020468
16. 16. Corcodel N, Rammelsberg P, Moldovan O, Dreyhaupt J, Hassel AJ. Effect of external light conditions during matching of tooth color: an intraindividual comparison. International J Prosthodont. 2009;22:1.
17. 17. Paravina RD, Ghinea R, Herrera LJ, Bona AD, Igiel C, Linninger M et al. Color difference thresholds in dentistry. J Esthet Restor Dent. 2015;27:S1–S9. https://doi.org/10.1111/jerd.12149
18. 18. Emídio AG, Silva VFFME, Ribeiro EP, Zanin GT, Lopes MB, Guiraldo RD et al. In vitro assessment of activated charcoal-based dental products. J Esthet Restor Dent. 2023;35(2):423-430. https://doi.org/10.1111/jerd.12982
19. 19. Paravina RD, Pérez MM, Ghinea R. Acceptability and perceptibility thresholds in dentistry: A comprehensive review of clinical and research applications. J Esthet Restor Dent. 2019;31;103–112. https://doi.org/10.1111/jerd.12465
20. 20. Okubo SR, Kanawati A, Richards MW, Childressd S. Evaluation of visual and instrument shade matching. J Prosthet Dent. 1998;80:642–648. https://doi.org/10.1016/S0022-3913(98)70049-6
21. 21. Posaveć I, Prpić V, Zlatarić DK. Influence of light conditions and light sources on clinical measurement of natural teeth color using VITA Easyshade Advance 4,0® Spectrophotometer. Pilot study. Acta Stomatol Croat. 2016:50:337–347. https://doi.org/10.15644/asc50/4/7
22. 22. Yılmaz B, Irmak Ö, Yaman BC. Outcomes of visual tooth shade selection performed by operators with different experience. J Esthet Restor Dent. 2019;31:500–507. https://doi.org/10.1111/jerd.12507
23. 23. Paravina RD, Majkic G, Imai FH, Powers JM. Optimization of tooth color and shade guide design. J Prosthodont. 2007;16:269–276. https://doi.org/10.1111/j.1532-849X.2007.00189.x
24. 24. Joiner A. Tooth colour: a review of the literature. J Dent. 2004;32:3–12.
25. 25. Śmielecka M, Dorocka-Bobkowska B. Effects of different light sources on tooth shade selection. Dent Med Probl. 2020;57:61–66. https://doi.org/10.17219/dmp/114112
26. 26. Nakhaei M, Ghanbarzadeh J, Keyvanloo S, Alavi S, Jafarzadeh H. Shade matching performance of dental students with three various lighting conditions. J Contemp Dent Pract. 2013;14:100–103. https://doi.org/10.5005/jp-journals-10024-1279
27. 27. Gómez-Polo C, Muñoz MP, Luengo MCL, Vicente P, Galindo P, Casado AMM. Comparison of the CIELab and CIEDE2000 color difference formulas. J Prosthet Dent. 2016;115:65–70. https://doi.org/10.1016/j.prosdent.2015.07.001
28. 28. Luo MR, Cui G, Rigg B. The development of the CIE 2000 colour-difference formula: CIEDE2000. Color Res Appl. 2001;26:340–350. https://doi.org/10.1002/col.1049
29. 29. Pecho OE, Ghinea R, Alessandretti R, Pérez MM, Della Bona A. Visual and instrumental shade matching using CIELAB and CIEDE2000 color difference formulas. Dent Mater. 2016;32:82–92. https://doi.org/10.1016/j.dental.2015.10.015
30. 30. Çalişkan A, Güleç Alagöz L, Irmak Ö. Shade matching potential of one-shade resin composites used for restoration repair. Dent Mater J. 2023;42:158–166. https://doi.org/10.4012/dmj.2022-125